Bookcase



FIG. 1 is a perspective view of a bookcase showing my new design;

FIG. 2 is a front elevation view thereof; and,

FIG. 3 is a left side elevation view thereof.

The cross hatched shading illustrated on the side panels, the front edges, and the interior back panels in FIGS. 1, 2, and 3 represents texture of the surface material and is distributed uniformly over the surfaces on which it is only partially represented.

The lines illustrated on the top of the “shelves” in FIGS. 1, 2, and 3 represent wood texture.

The broken lines showing is included for the purpose of illustrating environment of the design and forms no part of the claimed design.

The broken lines that define the bounds of the claimed design form no part thereof. 

The ornamental design for a bookcase, as shown and described. 